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Metalloproteinase - Springer Nature

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Last Updated: 23 April 2022

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Bimodal Effects of P2Y_12 Antagonism on Matrix Metalloproteinase–Associated Contractile Dysfunction in İnsulin-Resistant Mammalian Heart

The matrix metalloproteinases contribute to tissue depletion in diabetes by tissue degradation; however, their contributions can be varying depending on the pathology. Since research has highlighted the potential cardioprotective benefits of ticagrelor beyond its antiplatelet action, we hoped to see if Tica therapy can restore metabolic syndrome rats's weakened heart function by altering the expression levels of MMPs. The Tica's treatment of high-carbohydrate-induced MetS rats did not appear to have a significant effect on Langendorff's depressed contractile performance of the depressed heart preparations. In addition, Tica therapy of MetS rats did not appear to improve the heart's degraded protein levels of MMP-2 and MMP-9. Overall, we found that Tica therapy of MetS rats has no effect on the depressed heart rate, but does have a significant positive effect on vascular relaxation.

Source link: https://doi.org/10.1007/s12011-021-02816-w


Matrix metalloproteinase 9 is associated with conjunctival microbiota culture positivity in Korean patients with chronic Stevens-Johnson syndrome

The conjunctiva of SJS patients is found to have a different microbiota strain than healthy controls, although several factors are related to the alteration of conjunctival microbiota. We investigated the conjunctival microbiota of Korean SJS patients, as well as the development of conjunctival microbiota and its positive culture. Methods Medical records were retrospectively reviewed in 30 ongoing SJS patients who had undergone conjunctival swab culture sampling. Demographic factors, persistent ocular disorders score, tear break-up time, tear coverup, tear matrix metalloproteinase 9, and findings of conjunctival swab culture were investigated. Tear MMP9 positivity was found more in the positive culture group than in the negative culture group. Topical cyclosporine and corticosteroid were not identified with traditional positive cultures. Conclusions From the results of this report, tear MMP9 positivity in chronic SJS patients may be attributed to an abnormal ocular microbiota.

Source link: https://doi.org/10.1186/s12886-022-02406-x


Mycobacterium avium-intracellulare complex promote release of pro-inflammatory enzymes matrix metalloproteinases by inducing neutrophil extracellular trap formation

Mycobacterium avium-intracellulare complex causes the majority of NTM infections. However, the role of neutrophils in the pathogenesis of MAC infection is uncertain. The present research examined the role of neutrophil extracellular trap formation in neutrophil immune defense mechanisms against infection with MAC strains, including M. avium isolated from patients with severe or moderate lung tissue damage. Peptidylarginine deiminase 4 inhibitor reduced MAC-induced NET formation, but did not have an effect on neutrophil shedding on MAC. Interleukin -8 release by neutrophils was also promoted by MAC, a process independent of MAC-induced NET formation.

Source link: https://doi.org/10.1038/s41598-022-09017-y


The Natural Ligand for Metalloproteinase-A Multifaceted Drug Target

Metalloproteinase is one of Russell's key ingredients, and it is one of the key ingredients of edema, blood coagulation, local tissue injury, hemorrhage, and inflammation during snakebite envenoming. Hence, finding a suitable metalloproteinase inhibitor from a natural source will be of major biological importance in mitigating pathological effects. We used computational methods to investigate the inhibition of metalloproteinase by phytochemicals present in Andrographis panic, which was part of this new research. A. paniculata phytochemicals were found to associate with the catalytic M domain's active site amino acid residues, namely ASN203, ARG293, PHE203, LEU206, LYS199, and ALA122, which is similar to that of reference compound Batimastat. The 14-acetylandrographolide, 14-deoxy-11,12 doehydroandrographolide, Andrograpanin, Isoandrographolide, and 14-deoxy-11-oxoandrographolide, 14-acetylandrographolide, Andrograpanin, Isoandrographolide, Andrograpanin, Isoandrographolide, and 14-deoxy-11-oxoxoanin Metalloproteinase-14-acetylandrographographolide complex showed more root mean square shifts of amino acid residues of metalloproteinase-14-acetylandrographolide complex than metalloproteinase-Batimastat complex, indicating the high stability of metalloproteinase with the phytochemical.

Source link: https://doi.org/10.1007/s12010-021-03778-4


Stachys schtschegleevii tea, matrix metalloproteinase, and disease severity in female rheumatoid arthritis patients: a randomized controlled clinical trial

ffi schtschegleevii is a herbal medicine used to treat infections that has caused inflammation. This is the first research to investigate the effects of SSC tea on disease risk, serum inflammatory biomarkers, and matrix metalloproteinases in women with rheumatoid arthritis. Both study groups had response rates over 94 percent. SSC made significant MMP-3 drops over the comparisons vs. : 20. 5 percent vs. . Unlike the intervention within the SSC group that resulted in significant decreases in the mean serum concentrations of hs-CRP, IL-1, and MMP-3, SSC showed significant decreases in the mean serum levels of hs-CRP, IL-1, and MMP-3. Conclusions The SSC intervention produced an appropriate clinical outcome for female RA patients, as well as dramatic decreases in the number of tender and swollen joints, DAS28, and serum MMP-3 levels. Registration date: 2015-05-12; Prospectively registered at the Iranian Registry of Clinical Trials, linked to the WHO Registry Network https://en. irct. org/trial/11602, IRCT registration number: IRCT2015032015335N5, IRCT 2005-05-12.

Source link: https://doi.org/10.1007/s10067-021-05981-4


Increased Serum Levels of Matrix-metalloproteinase-9, Cyclo-oxygenase-2 and Prostaglandin E-2 in Patients with Chronic Obstructive Pulmonary Disease (COPD)

Chronic obstructive pulmonary disease, a heterogeneous lung disease characterized by airflow blockage and the third leading cause of death worldwide, is chronic obstructive pulmonary disease. We examined the serum levels of matrix metalloproteinase-9, cyclooxygenase-2, and prostaglandin E-2 in COPD patients here. MMP-9, COX-2, and PGE-2 serum tests were significantly higher in the COPD group than in healthy controls. MMP-9, COX-2, and PGE-2 serum tests were elevated in patients with longer medical history than those with less clinical experience.

Source link: https://doi.org/10.1007/s12291-021-00973-2


Myocardial Injury Promotes Matrix Metalloproteinase-9 Activity in the Renal Cortex in Preclinical Models of Acute Myocardial Infarction

New mechanistic information into how the kidney responds to cardiac injury in the aftermath of acute myocardial infarction is required. We hypothesized that AMI promotes inflammation and matrix metalloproteinase-9 activity in the kidney, and we investigated the effects of initiating an Impella CP or veno-arterial extracorporeal membrane oxygenation before coronary reperfusion during AMI. Adult male swine were exposed to coronary occlusion, and either reperfusion or assistance with either Impella or VA-ECMO before reperfusion. Impella reduced myocardial infarct size and urinary KIM-1 levels compared to IR, but VA-ECMO did not.

Source link: https://doi.org/10.1007/s12265-021-10114-y


Matrix metalloproteinase 11 (MMP11) in macrophages promotes the migration of HER2-positive breast cancer cells and monocyte recruitment through CCL2–CCR2 signaling

Despite the stromal expression of MMP11 in breast cancer, the clinical relevance and role of MMP11 in immune or stromal cells of breast cancer remain unclear. MMP11 expression in breast cancer cells from 497 patients is a unique prognostic risk, according to the researchers, although MMP11 expression in tumor cells and fibroblasts is not associated with patient survival. Enforced MMP11 expression in breast cancer cells did not promote cell proliferation and migration, according to Enforced MMP11 expression in breast cancer cells, which did not promote cell proliferation and migration. In addition, we discovered that the chemokine CCL2 gene secreted from MMP11-overexpressing macrophages activated the MAPK pathway via its receptor CCR2 in breast cancer cells, therefore encouraging breast cancer cell migration through MMP9 upregulation. MMP11 expression in macrophages was also stimulated by MMP11-overepressing HER2+ breast cancer cells, according to MMP11-overepressing HER2+ breast cancer cells.

Source link: https://doi.org/10.1038/s41374-021-00699-y

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions